Duplicating machine



" Feb. 26, 1935. J J. FLANIGAN 1,992,411

DUPLICATING MACHINE Original Filed Sept. 26, 1951 Z'Sheets-Sheet ljngz-i n t oz": 2%". 3 4

J. J. FLANIGAN DUPLICATING MACHINE Feb. 26,1935.

Original Filed Sept 26, 1951 2 Sheets-Sheet 2 Patented Feb. 26, 1935 rUNITED STATES DUPLICATING MACHINE John J. Flanigan, )ak Park, 111.,assignor tovivid, Incorporated, Chicago, 111., a corporation of.

Illinois Original "application September 26, 1931, Serial No. 565,283,new Patent No. 1,955,059, dated April 17,1934. Divided and; thisapplication April 7, 1933, Serial No. 664,922

11 Claims. (01. 242-45) This application is a division of myapplication, Serial No. 565,283, filed September 26, 1931, now Patent1,955,059 dated April 17, 1934.

This invention relates to duplicating machines operating on thehectograph principle and using a gelatin band wound onto a supply rollwhich may be so mounted at one end of the machine that the band may bewithdrawn therefrom and directed across the bedof the machine to bewound onto a take-up roll at the other end of the machine.

One object of the invention is to novel duplicating machine of simpleand economical construction and efficient and positive opera tionwherein the gelatin band may be wound onto or from a take-up roll by asingle operating memher through the intermediary of devicesautomatically connecting either the supply roll or the take-up roll tothe operating member as the operating member is moved in oppositedirections. An object of the invention ancillary to the foregoing is toso mount the winding devices that installation or removal thereof may becarried out with a minimum alteration of other parts of the machine. Inorder that clean clear-cut impressions may be taken from the gelatinband, it is necessary that the extent thereof across the bed bemaintained taut, and another object of the invention is to so retardmovement of the supply and take-up rolls that the extent of the bandover the bed may be tightened and maintained in taut condition.

A further object of the invention is to provid a novel winding devicefor use in a duplicating machine or the like and embodying a dividedshaft extending along the sideof the machine and having a clutch devicethereon including a spiral gear adapted to slide along the shaft as itis rotated in opposite directions so that one or the other of thesections of the divided shaft may be operated as the spiral gear isturned in opposite directions.

A selected embodiment of the invention illustrated in the accompanyingdrawings and therein Fig.1 is a plan view of a typical duplicatingmachine with which my invention may be associated;

Fig. 2 is a longitudinal sectional view taken substantially on the line22 on Fig. 6;

Fig. 3 is a transverse sectional view taken stantially on the'line 33 onFig. 6;

Fig. 4 is a fragmentary side elevation;

Fig. 5 is a sectional view taken substantially on the line 5-5 on Fig.6; and I sub- .provide a Fig. 6 is. a horizontal sectional view of thewinding mechanism mounted on the side of the machine. 1

In the selected duplicating machine illustrated in the accompanyingdrawings, 7 a'nd'8 are the side frame members spaced a predetermineddis" tance apart and suitably joined together and supporting the bed 9across which the gelatin band 10 is directed so that a form to beduplicated may be applied thereto and subsequently ii transferred ontosheets pressed against the por-' tion of the gelatin band extendingabove the bed 9 whereat the form is applied.

Gelatin bands such as are used in hectograph machines of the kind towhich this invention appertains are wound in rolls which are usuallystored in stands of the kind disclosed in my copending application,Serial No. 553,997, filed J uly 30, 1931, now Patent No.1,928,35Lpatented Sep-.

tember 26, 1933, or are kept in suitable racks provided near themachine. These rolls include spindles which may be of the kind disclosedin the McNally Reissue Patent No. 18,448, reissued- May 3, 1932 When aroll is to be used it is shitably mounted preferably at the rear end ofthe machine and provides what will hereinafter be called the su ply roll11 and which has aspindIe 12. A spindle 13 is mounted at the other endof the machine which is preferably the forward end thereof and thegelatin band may be wound.

thereon, this constituting what 1 will be known hereinafter as'thetake-up roll 14.

A carriage C is mounted to be reciprocable over the bed 9 and thegelatin band stretchedsover the bed. This carriageincludes a framehaving side members 15 and 16. A roller 17 in the side member 15 isadapted to travel on the top of a flange provided at the top of the"side frame niem her '7. A roller 18 in the side member 16 is adapted totravel on the top of a flange provided at the top of the side framemember 8. The particular structural characteristics of the car? ria'geillustrated herein are described and claimed in my ctr-pendingapplication, Serial No. 565,283, filed September 26, 1931, of which thisapplication is a division, but it is to be understoodthat any desiredformof carriage or duplicating machine may be used without departingfrom the purview of my invention.

In orderto wind the gelatin band to or from the supply roll 11 and ontoor from the take-up roll 14, the following devices are provided. 'A

23 and 24 are provided in the housing 19. A shaft is journaled in thebearings 20, 21 and'22 and a short shaft 26 is journaled in the bearings23 and 24 in axial alignment with the shaft 25. The adjacent ends ofthese shafts are abutted between the bearings 22 and 23 and a sleeve 27is slidably mounted on the shafts over the abutting ends thereof. Aspiral gear 28 is provided on the periphery of the sleeve 27. A pin 29is mounted in p the shaft 25 between the bearing 22 and the adjacent endof the sleeve 27. Another pin 30 is mounwd in the shaft 26 intermediatethe bearing 23 and the adjacent end of the sleeve 27. Diametricallyspaced notches 31 are provided in the end of the sleeve 27 adjacent thepin 29, and similarly spaced notches 32 are provided in the end of thesleeve 27 adjacent the pin 30.

A bearing 33 is provided in the housing 19 intermediate the bearings 22and 23 and a shaft 34 is journaled in this bearing and a suitablebearing 35 provided in the side frame member 7, and a hand wheel 36 isfast on the shaft 34 outwardly of the bearing 33; A spiral gear 37 (Fig.3) is fast on the shaft 34 and meshes with the spiral gear 28. l

A shaft 38 is journaled in the side frame member 7 and extends into thehousing 19. A spiral gear 39 is fast on the shaft 38 in the housing 19,and thisspiral gear meshes with a spiral gear 40 fast on the shaft 25intermediate the bearings 21 and 22. A suitable clutch arrangement isprovided at the inner end of the shaft 38 and the adjacent end of thespindle 12 is detachably connected to the shaft 38 through this clutcharrangement.

A shaft 41 is journaled in the side frame memher '7 and'extends into thehousing 19. A spiral gear 42 is fast thereon in the housing 19 and thisspiral gear meshes with a spiral gear 43 fast on the shaft 26intermediate the bearings 23 and 24. A suitable clutch arrangement isprovided at the inner end of the shaft 41 and the adjacent end of thespindle 13 is detachably connected to the shaft 41 by this clutcharrangement.

The ends of the spindles 12 and 13 opposite those connected to theshafts 38 and 41 are detachably niountedin suitable bearings, providedin the side frame member 8, in any desired manner.

When the hand wheel 36 is turned in one direction and the shaft 34 issimilarly turned, the teeth of the spiral gear 37 so act on the teeth ofthe spiral gear 28 that the sleeve 27 is slid along the shafts25 and 26until the notches at the end of the sleeve in the direction in which itis so slid engage the adjacent pin and thereupon the shaft in which thispin is fast is connected to the shaft 34 to rotate therewith. At thistime the notches at the opposite end of the sleeve 27 are entirely freeof the adjacent pin and therefore only one of the shafts is rotated bythe handle 36 when it is turned in the aforesaid direction. Likewise,when the hand wheel 36 is turned in the opposite direction, the teeth ofthe spiral gear 37 so act on the teeth of the spiral gear 23 that thesleeve 27 is slid along the shafts 25 and 26in the direction opposite tothat in which it was slid when the hand wheel 36 was turned as firstdescribed, and when the sleeve slides in this direction, the notches atthe end thereof which were previously disengaged from the adjacent pinnow engage this pin and connect the shaft in which this pin is fast tothe shaft 34. At this time the notches which engaged the pin when thehand wheel was turned in the first direction are free of this pin.

The pins 29 and 30 are so. spaced apart and the length of the sleeve 27is such that the notches and pins at but one end of the sleeve will beengaged at a given time, and consequently only one orthe other of theshafts 25 and 26 is driven upon a given operation of the hand wheel 36.Furthermore, since the shafts 25 and 26 are selectively connected to theshaft 34 as the shaft 34 turns in opposite directions, it is clear thatthe shaft 25 is rotated by the shaft 34 in one direction While the shaft26 is rotated by the shaft 34 in the other direction.

When the shaft 26 is driven, this movement is transmitted through thespiral gears 43 and 42 to the shaft 41 and thence to the spindle l3whereupon the band is wound onto the take-up roll 14 as it is withdrawnfrom the supply roll 11. When the shaft 25 is driven, this movement istransmitted through the spiral gears 40 and 39 to the shaft 38 whereuponthe spindle 12 is ro tated and the band is wound onto the supply roll 11as it is withdrawn from. the take-up roll 14. It is to be understoodthat when the shaft 26 is connected to the shaft 34 to drive the spindle13, which withdraws band from the supply roll, the spindle is rotated asis the shaft 25 but at this time the pin in the shaft 25 is disengagedfrom the notches in the adjacent end of the shaft and hence thisrotation of the shaft 25 does not interfere with the turning of theshaft 26. The shaft is similarly rotated when the shaft 25 is connectedto the shaft 34, but this shaft is also disconnected from the shaft 34at this time.

The Winding of the band in opposite directions is utilized to bringfresh portions of the band into position over the bed and also. to soposition the form applied to the gelatin band that it will be properlylocated on the sheets taking the impressions from the form on the band.

The portion of the gelatin band extended over the bed 9 is preferablystretched and held in taut condition when a form is appiied thereto andimpressions are being taken from this form. In order to hold the bandtaut after it has been stretched, the following devices are provided.

An enlarged bearing portion 44 is provided on the shaft 41 and thisbearing portion journaled in a centrally located bore 45 in the disc orbearing ,member 46 fast to the side frame member 7 by screws 4'7 or thelike. A tapered slot 43 is provided in the disc 46 which opens into thebore 45. Aroller 49 is mounted in this tapered slot 43 and bears againstthe periphery of the enlarged bearing portion 44. A stud 50 is fast onthe sideframe member 7 and a rocker 51v pivotally mounted thereon andone end of this rocker extends through the depressed or cut-out portion52 in the disc 46 and hasa foot portion 53 thereon that projects intothe tapered slot 48 to bear against the roller 49. When the rocker 51 isin the full-line position shown in Fig. 5, the foot portion 53 bearsagainst the roller 49 and holds it at the larger end of the tapered slot43, and when the parts are in these positions the bearing portion 44 andthe shaft 41 are free to rotate. When, however, the rocirer 51 ispivoted into the broken line position shown in Fig. 5, the foot portion53 is withdrawn from the roller 49 which may then move into thesinallerpart of the slot 43 whereupon it binds the bearing portion 44 tohold this hearing portion and the shaft 41 against reverse rotation.

An enlarged bearing portion 54 is provided on the shaft 33. A splitbrake band 55 surrounds this bearing portion and has lugs 56 and 57 adjacent the split therein. 1 A housing .58 secured to the side framemember 7 encloses these parts. The lug 56 bears against a boss 59 in thehousing 58. A stud 60 extends from the side frame member '7 and a lever61 is pivotally mounted thereon. One end of this lever extends into thehousing 58 and bears against the lug 57 and the other end of thisleveris disposed below a shaft 62 journaled in the side frame member 7. Abearing portion 63 is fast on the shaft 62 inwardly of the side framemember '7 and includes an arm 64 carrying a pin 65 adjacent the free endthereof. A spring 66 extends between the pin 65 and the adjacent end ofthe lever'6l. The pin 65 also bears against the rocker 51. A handle 6'?is provided on the end of the shaft 62 outwards 1y of the side framemember 7 and when this handle is in the position illustrated in Figs. 2,4 and 5, the spring 66 acts on the arm 64 to urge it into engagementwith the stop pin 68 mounted in the side frame member '7 and when theparts are in these positions, the spring 66 acts on the rocker 51 tourge it into the full-line position of Fig. 5 which, as previouslydescribed, disposes the roller 49 inthe larger end of the slot 48 topermit free turning of the enlarged bearing portion 44 and the shaft 41.When the parts are so arranged, the tension of the spring 66 is notsufficient to sourge the end of the lever 61 toward the lug 5'7 that thebrake band 55 will fricti-onally engage the periphery of theenlargedportion 54 on the shaft 38, and therefore the shaft 33 is freeto turn. The handle 67 is disposed in the described position when thewinding mechanism is to be operated.

When, however, the handle 67 is turned to i move the arm 64 into thebroken line position of Fig. 5, the rocker 51 is free tom-ove into thebroken line position shown in this figure which, as previouslyexplained, permits the roller 49 to move through the slot 48 tobind theenlarged bearing portion 44. This movement of the arm 64 also tensionsthe spring 66 which therefore so acts on the lever 61 that the lug 5'?is urged toward the lug 56 and since the lug 56 bears on thelboss 59,the brake band 55 is held against movement and is therefore tightenedonto-the periphery of the enlarged bearing portion 54 which, therefore,holds the shaft against move: ment and hence when the arm 64 is in thebroken line position of Fig. 5, both the shafts 38 and 41 are heldagainstunwinding movement. Thus, if the arm 64 is disposed in the brokenline position of Fig. 5 and the hand wheel 36 is turned to slightly windthe band onto the take-up roll, the band will be drawn taut since thebrake band 55 holds the shaft 38 against turning movement in eitherdirectionwhereas the binding effect of the roller49 only preventsunwinding movement of the shaft 41. When the arm 64 is returned to thefull-line position shown in Fig. 5, the band is free to be wound ineither direction.

It is manifest from the foregoing description that I have provided anovel duplicating machine wherein the gelatin band may be expeditiouslydrawn taut to thereby insure neat impressions on sheets applied totheband. Furthermore, the interconnection between the driving parts ofthe winding mechanism and the driven portions thereof includes a memberwhich selectively connects the driven parts of the winding mechanismto-the driving parts as the driving parts move in opposite directions,and consequently the driven parts cannot be operated in a manner whichwould tend to loosen the roll of band previously wound, and this isparticularly true since the band is only unwound from one spindle as itis wound onto the other.

I While Ihave illustrated and describeda selected embodiment of myinvention itis to be understood that this is capable of variation andmodification and I therefore do not wish to be limited to the precisedetails set forthbut desire band on one of the rolls as it is unwoundfrom the other of therolls and including an operating device, a-shaftextending from said operating device to one of said rolls, another shaftextending from said operating device to the other of said rolls, saidshafts being arranged in axial alignment with adjacent endsthereof injuxtaposition to each other, and means including a part mounted on thejuxtaposed ends of said shafts and automatically connecting one of saidshafts to said operating device as the operating device is moved in onedirection and connecting the 1 other of said shafts to said operatingdevice as the operating device is moved in the other direction. Y 1

2. In a duplicating machine wherein a gelatin band is withdrawn from asupply roll and directed across the bed of the machine to. a takeuproll, means for moving said rolls to Wind said band on one of the rollsas it is unwound from the other of the rolls and including an operatingdevice, a shaft extending from said operating device to one of saidrolls, another shaft extending from said operating device to the otherof said rolls, said shafts being arranged in axial align. ment withadjacent ends thereof in juxtaposition to each other, a sleeve mountedover the juxtaposed ends o-f'saidshafts, attaching. deviceson theshafts, and'means connectingthe sleeve tothe operating device wherebywhen the operating device is moved in one direction said sleeve will bemoved to engage the attaching device on one shaft to thereby connect;said shaft to said operatingdevice and whereby said sleeve will be movedin the opposite direction to'engage the attaching device on the other ofsaid shafts whereby said other shaft will be operated when theoperatingdevice is moved in the opposite direction to the firstdescribed movement thereof.

3. In a duplicating machine wherein a gelatin band is withdrawn from asupply roll and directed. across the bed of the machine to a take-uproll, means for moving said rolls to wind said band on oneof the rollsas it is unwoundfrom the other of the rolls and including an operatingdevice,

a shaft extending from said operatingdevice to.

one of said rollsyanothershaft extending from said operating device totheother of said rolls, said shafts being arranged in axial alignmentwith adjacent ends thereof in juxtaposition to each other, a sleevemounted over the juxtaposed ends of said shafts, attaching deviceson the"shafts, said sleeve mounted over the juxtaposed ends of said shaftshaving notches in the ends thereof, pins on said shafts adjacent theends of said sleeve, and means connecting the sleeve to the operatingdevice whereby when the operating device is moved in one direction saidsleeve will be moved to engage the notch at one end thereof with the pinon one of said shafts-to operate said shaft with the operating deviceand. whereby said sleeve will be moved in the opposite direction toengage the notch at the other end thereof withthe pin on the other ofsaid shafts whereby said other shaft will be operated when the operatingdevice is moved in the opposite direction to the first describedmovement thereof.

4. In a duplicating machine wherein a gelatin band is withdrawn from asupplyroll and directed across the bed of the machine to a take-up roll,means for moving said rolls to wind said band on one of the rolls as itis unwound from the other of the rolls and including an operatingdevice; a shaft extending from said operating device to one of saidrolls, another shaft extending from said operating device to the otherof said rolls, said shafts being arranged in axial alignment withadjacent ends thereof in juxtaposition to each other, a sleeve mountedover the juxtaposed ends of said shafts, attaching devices on theshafts, a spiral gear on said sleeve, a spiral gear on said operatingdevice meshing with the spiral gear on said sleeve whereby-when saidoperating device is moved in one direction said spiral gears willcooperate to shift said sleeve to engage the notch at one end thereofwith the pin on one of said shafts whereby said shaft will be operatedwith saidoperating-device, said spiral gears cooperating to shift saidsleeve in the opposite direction when said operating device is moved inthe opposite direction wherebythe notch at the other end of said sleevewill engage the pin on the other of said shafts so that said other shaftwill be operated with said operating device upon further movementthereof in said opposite direction.

5. Ina duplicating machine wherein a gelatin band is withdrawn from asupply-roll at one end of the machine to be directed across the bed ofthe machine to be wound onto a take-up roll at the other end of themachine, meansfor Winding said gelatin band from said supply roll tosaid take-up roll, locking means including a part on the take up-rollfor preventing unwinding movement of the take-up roll and includinganother part on the supply roll for retarding movement of the supplyroll whereby said band may be stretched taut over said bed and betweensaid rolls, and means independent of the Winding means for operating thelocking--means.

6. In a duplicating machine wherein a gelatin band is withdrawn from asupply'roll at one end of the machine to be directed across the bed ofthe machine to be wound onto a'take-up roll at the other end ofthemachine, means for winding said gelatin band from said supply roll tosaid take-up roll and including an operating member,

locking means including a part on the take-up roll for preventingunwinding movement of said take-up roll, brake means including a part onthe supply roll and having a part cooperating therewith for applyingtension tov said supply roll to resist movement thereof, and meansincluding a handle positioned near said operating member for operatingsaid locking and said brake means.

7. A duplicating machine having spindles at opposite ends thereofadapted to havea gelatin band wound thereon to be windable from eitherone of said spindles to the other of said spindles,

means for winding'said band, locking means ineluding a part on one ofsaid spindles for preventing unwinding movement of said band from saidone of said spindles, brake means including a part on the other of saidspindles and having a part cooperating therewith forapplying tension tosaid other of said spindles, and manually operable means for operatingsaid locking and said brake means.

'8. A duplicating machine having spindles at opposite ends thereofadapted to have a gelatin band wound thereon to be windable from eitherone of said spindles to the other of said spindles, means for windingsaid band, a bearing member, a bearing portion on one of said spindlesmounted in a bore in the bearing member, said bearing member having atapered slot therein opening into said bore, a roller in said slotmovable into operative position to prevent movement of said spindle inone direction, means engageable With said roller to move saidroller fromsaid operative position in said slot, and brake ing with the other ofsaid spindles to resist movement thereof when said roller is inoperative position in said slot.

9. A, duplicating machine having spindles at opposite ends thereofadapted to have a gelatin band Wound thereon tobe windable from eitherone of said spindles to the other of said spindles, means for windingsaid band, a bearing member, a bearing'portion on one of said spindlesmounted in a bore in the bearing member, said bearing member having atapered slot therein opening into said bore, a roller in said slotmovable into operative position to prevent movement of said spindle inone direction, control meansmoving means cooperat-' said roller-to andfrom said operative position in Y said slot, brake means cooperatingwith the other of said spindles to resist movement thereof when inbraking position, and common means for controlling the operation of saidcontrol means and said brake means.

10. In a duplicating-machine having spindles at opposite ends'thereofwith a gelatin band extended between said spindles over the bed' of themachine, means for winding said band, a bearing member, a bearingportion on one of said spindles mounted in a bore in the 'bearingmember,said bearing member having a tapered slot opening into said bore, aroller in said slot movable into operative position to prevent movementof said spindle in one direction, and means engageable with said rollerand operable to move said roller from said operative position.

11. In a duplicating machine having spindles at opposite ends thereofwith a gelatin band extended between said spindles over the bed of themachine, means for winding said band, a bearing member, a bearingportion on one of said spindles mounted in a bore in the bearing member,said bearing member having a tapered slot opening into said bore, aroller in said slot movable into operative position to prevent movementof said spindle in one direction, and means including a rocker having afoot portion thereon engaged with said roller whereby said rocker may bemoved to move said roller from said operative position in said slot.

